Sister ? friend ?

You were my friend
i loved you a lot

but now, no i cant
even stand to think about you

you make me so sick
over me, its him you pick

why are you like this
you need to stop

you were so great
the very top

i looked up to you
my sister, my hero

but you fell so far down
you've hit below the ground

how can i look up to you
when i know you arent there

why is it that you
dont even care

i should have known
you never really cared

sister ? by blood
friend ? before my eyes you
choose to flood